Cop of roving



4 d 1520,9'18 E. WAITE COP OF ROVING Orig'nal Filed April 6, 19.22

Patented Dec. 30, 1924.

. without danger of injury thereto, and wis particularly adapted` forl usein machinesA vunirsi) lsfr-Aripis PATENTQoFFICE-i EDWIN n'wnrrn, or FRAMINGHAM, MASSACHUSETTS: r-

COP OF ROVING.

original appiicationnied April e, 1922, serial No. 550,217.- niviaeuand this application andA rebrnay To all who/m, t may lconcern: Y

^ Be it known that I, EDWIN lE. WAi'rn, a citizen of the United States, residing` at Framingham, county of MiddlesexState of Massachusetts, have invented a certain new and useful Improvement in Cops of Roving, of which the following is a full, clear, and exact description. v The present invention relates to cops of roving, and has special reference to cops of roving of asbestos fibre. y

An object of the' invention'is to provide a novel and improved cop of this character which is capable of sustaining a considerable pull withoutbreakng `or otherwise injuring. the roving even though asbestos' roving of short fibre is used. l g

Another object of the invention is to provide a novel and improved copv of .this character which .is so lformed as to be selfsustaining. "l f f A further object `or' the vinvention isto provide a novel and improved cop of this character which maybe conveniently shippe for covering wire or the like with rovin 'The features of the invention will be c early understood from the following description and accompanying drawings, in-which,,-

Figure 1 is a sideelevation of a cop'em- `bodying my invention Ain its preferred form,

a `protective covering4 for the cop l.' being shown partly broken away; i T. a t

Fig. 2 isla detail longitudinal sectional view, partly in elevation, of a spool which is employed in a` machine that maybe .used in forming the cop, with the cop showniin sectionon thespool; l

Fig. 3 is a sectional'plan view of a portionof this machine;

Fig. 4 is a sectional view, on an enlarged scale and partlybroken away, takenjon the line 1 -4 of Fig. 3, and Y. i

Fig. 5 is a front elevation of the portion of the machinev illustrated in Fig. 4.1

4My improved cop -is particularly adapted to be formed by the machine and in accordance with the method described and claimed in my copending application, V217, liled April 6, 1922, of which the present ap lication is a division. While this ma-l chine and method forms no part of the present invention, in order to assist in underf sustaining cops.A

Ser. No. 550,-.

12, 1923. Serial No. 618,752.

Standing the construction. of i improved cop la portion of this ,machine `is illustrated in the drawings andwill be briefly described.

As shown the machine is'fprovided with .a

pair of rub belts or api-onsl2, `towhich sepa- 'rate strips of libre are delivered by suitable mechanism from a ca'rdingengine, the rub aprons acting in the usual `manner to condense the strips .intol separate rovings' 4.

A S the 'rovings are delivered fromhe, rub

, aprons Ythey are threaded in groups` of five which are driven`in a clockwisedirection, viewing.,Fig. 4,'.the `rovin s of each group being arranged side by si e so as to forma flat strand. The rolls 10 deliver the Y l groups of rovings to cop spools or spindles".

12 supported by y theerrolls.. 1() anddriyen thereby. Each cop spool 12 isprovided with a shank or cop tubey 14 of `substantially the width oi? the associateddelivery vroll 10 and isfurther provided with annular viiariges 16 between which the, delivery `rol l extends.

this construction it ywillbefa'ppalv'ent that "when the. deliver y, v,rollsnl `are rotated, the copv spools 12 ywil be" rotatedgby frictional contact therewith, andthe l'iiat strands of rovin will lbe wound onthe spoolsQQIn' ythis mac.

ine the iiat'strands are wound on the spools in crossed-helices vto formse'lfguide t pini carrying bar 8 is `reciprocated longitudinally inl such .timed relation tothe rotation of the delivery rolls 10 as to cause each pair kof l guide pins 6 to, deilectg'the strand lof roving from one side of thel roll to the other during the yrotation of the roll, the

To provide 'for this' thel guide4 bar beinglheld at the limit of each throw asutlicient length of time to permit the strand coinciding with the side of the roll to be Adeliveredtothe 'cop so that the cop ywill be `built up in suchV a,

manner as tocompletely-iill the spabe; Y.

a portion of.

tween the cheeks ofy the flanges ofl thefc'op spool. The flanges 16 prevent theV ends of the cops from sloughing ofi" during the winding.

Each cop spool 12 is provided with trunnions 18 whichl are removably received in slots 20 in the upper ends of upwardly in- Y` clned side armsof yokes 22. The yokes 22 are pivotally mounted at their lower ends flanges.

so that the cop spools are separately held in proper frictional contact with -the Jdelivery rolls 10 lay-gravity,-andr fthe' spools'- 26 and 28, the disk 26 being removable from the spindle 'and the disk 28 being fixed on the spindle. The disks 26rand 28 are each provided with inwardly projecting annular flanges or ribs 30 on which the ends of the cop core or tube 14 ismounted, the cop tube being held on the flanges, and the disk 26 being held in position by frictional contact between the tube and the The portions ofthe disks 26 and 28outside of the' cop tube 14 constitute the 'heads 16 of the spool.

When the cop spool has been filled and removed from the machine, Vas above described, the cop with its tube 14 maybe easily removed from the spool by removing the disk 26 from the spindle 24.l

In order to prevent 4the rovings from un- Winding and to hold the, leading end of the rovings in position'on thevtube and to prei ent injury thereto after the cop is removed from theI spool, a band of paper or other protective material 32 'is pasted about the peripheral surface of the cop either before or after the cop is removed from the spool.

When the cop is to be used in a Wire lcovering machine such `as the one-illustrated and Adescribed in applicants copending application," Ser. N o. 550,216, filed April 6, 1922, in which, in setting 'up the machine, a plurality of cops are placed on the cop support of the machine and are successivelymoved into position to be used, it i-s necessary that the cop should be rightside up onthe support vand is therefore important l that the operator shall be enabled to determine, without removing the paper band,

the properposition with relation to its ends .and the direction in which it is Wound 'that the cop should be initially placed in the machine. To provide for this the AWord Top or othernword or'mark `is placed onfthe band at a'point adjacent the edge Aof the cop which should be uppermost when the cop is placed in the machine, as

- y' indicated in Fig. 1. The beginning of this word indicatesY the direction of Winding with relation to the ends of the cop. When the cop is right side up the head of the word Will be to the left, the word' will be right side up and be near the top' and anyspool v12 are` one of these facts will indicate that the cop `is properly positioned.

1-Oneof the advantages of'a cop thus formed is that it can be unwound by pulling simultaneously on a .plurality of rovings, so that Vif theA strand from-which the cop is formed is made up of five rovings, as

above described, a pull can be safely applied which is ve. times greater than if the cop were made up of but one roving. This is of particular advantage in connection with the use' of soft rovings of short asbestos fibre in which the Weaknessof the individual. rovings make manipulation of a single rovingunsatisfactory if not impossible in` commercial rapplication such as in covering Wire and the like. By forming a cop in accordance with the present invention, short fibre asbestos may be used Without backing orsupporting thread as heretofore has' been found to be necessary. The strand made up of-a plurality of rovings, on account of itsv strength, is also of great advantage in forming copsy of asbestos roving of long fibre as Well as of short fibre v since cops as heretofore formedof asbestos rovingof either short or long fibre is unwound with difculty in a roving applying machine.

As Willbe evident to those skilled in the art my invention permits of' various modifications Without departing from the spirit thereof or the scope ofthe appended claims.

WhatI claim is:

f 1. A package of roving comprising a flat strand composed of aplurality of rovings of short fibre asbestos arranged side by side and Wound in crossed helices into a cop, the

individual rovings being too weak for satisfactory manipulation.

2. A package of roving comprising a core,

Aand aflat strand composed of` a plurality of o'n to indicate the direction of the winding with relation to the ends of the cop.

' EDWIN E.WAITE. 

